Xenon Brights
12-13-2006, 09:20 PM
#17
Rennlist Member
Originally Posted by ELUSIVE
Palting - are you 100% sure?
I had the Bi-xenons on my 987S and my 997S and i'm pretty sure the high beam is a standard halogen but that the low beams stay on while the high beam is on.
I had the Bi-xenons on my 987S and my 997S and i'm pretty sure the high beam is a standard halogen but that the low beams stay on while the high beam is on.
If you FLASH your high beams, they will use a halogen bulb. If you use the "ON" setting of your high beams they will use a xenon bulb. This is because it isn't good to flash the xenon lights, they wont illuminate fully anyways in a short enough time.
12-13-2006, 09:24 PM
#18
Rennlist Member
Originally Posted by lowside67
Incorrect.
If you FLASH your high beams, they will use a halogen bulb. If you use the "ON" setting of your high beams they will use a xenon bulb. This is because it isn't good to flash the xenon lights, they wont illuminate fully anyways in a short enough time.
If you FLASH your high beams, they will use a halogen bulb. If you use the "ON" setting of your high beams they will use a xenon bulb. This is because it isn't good to flash the xenon lights, they wont illuminate fully anyways in a short enough time.
12-13-2006, 10:04 PM
#19
Nordschleife Master
Originally Posted by ELUSIVE
That would lead one to believe that the high beam is not Xenon!
I could not find where i put the quote from Porsche stating the fact that the Bi-Xenons have HID on both high and low beams.
I did one better! Just to convince myself, and maybe you guys. I have a 150 foot driveway with a white wall at the end. I backed both the 987S (Halogen) and the C4S (Bi-Xenons) down the drive, turned the lights on high beam, walked back up to the drive to the wall. C4S is definitely whiter and brighter. Purple haze too when I look back at the cars.
Believe what you want, but there's the truth. Bi-Xenon means HID for both high and low beams.
12-14-2006, 12:15 AM
#20
Intermediate
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Wow, we’ve certainly managed to beat this horse to death…
Palting, tell me again how your test using a 987 with halogens and a 996 with xenons confirm the functionality of the 9X7 xenons? The 996 xenon assemblies and the 9X7 xenons don't share a single part.
YES, the 9X6 posters are correct, bi-level xenon means that the HID lamp serves as both dipped and high beam and this can be seen on the 9X7 as it looks like the lower half of the HID lamp is lit and then the upper half.
What their explanation is lacking is that the 9X7 lamps use an H11 halogen bulb to supplement the HID high beam (and to provide the "flash" function).
This halogen provides the long range illumination of the high beam because the HID lamp by itself doesn’t make a particularly good high beam. The part number for this bulb is 999 631 144 91.
It is the presence of this bulb that is leading to the incredulity coming from those posters that actually own a 987 with xenons, in that when turning on the high-beams the spot function of the H11 bulb quite distinctly turns on and provides more long range illumination than the light cast by the redirected xenon lamp, giving the high beam setting a predominantly halogen look and effect.
From page 83 of Porsche’s 987 Product Manual
The freeform reflector with halogen bulb (H 11/55 W, long-life) acts as an auxiliary main-beam headlight. It is designed as a spot to ensure better long-range illumination of the road.
As has been noted, this is quite simple to verify for oneself but not against a concrete wall, but against say an office building that incorporates reflective windows or doors at ground level. But if you're going to check for yourself, at least make sure you actually are driving the car with the equipment in question.
Palting, tell me again how your test using a 987 with halogens and a 996 with xenons confirm the functionality of the 9X7 xenons? The 996 xenon assemblies and the 9X7 xenons don't share a single part.
YES, the 9X6 posters are correct, bi-level xenon means that the HID lamp serves as both dipped and high beam and this can be seen on the 9X7 as it looks like the lower half of the HID lamp is lit and then the upper half.
What their explanation is lacking is that the 9X7 lamps use an H11 halogen bulb to supplement the HID high beam (and to provide the "flash" function).
This halogen provides the long range illumination of the high beam because the HID lamp by itself doesn’t make a particularly good high beam. The part number for this bulb is 999 631 144 91.
It is the presence of this bulb that is leading to the incredulity coming from those posters that actually own a 987 with xenons, in that when turning on the high-beams the spot function of the H11 bulb quite distinctly turns on and provides more long range illumination than the light cast by the redirected xenon lamp, giving the high beam setting a predominantly halogen look and effect.
From page 83 of Porsche’s 987 Product Manual
The freeform reflector with halogen bulb (H 11/55 W, long-life) acts as an auxiliary main-beam headlight. It is designed as a spot to ensure better long-range illumination of the road.
As has been noted, this is quite simple to verify for oneself but not against a concrete wall, but against say an office building that incorporates reflective windows or doors at ground level. But if you're going to check for yourself, at least make sure you actually are driving the car with the equipment in question.
12-17-2006, 02:56 AM
#21
I love the Bi-Xenon headlight in my 06 Boxster S. Best headlights in any car I have ever driven. Makes me upset when I drive any of my other cars and they can not match the light output.
